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Diagnostic Aids

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Check all connections, especially those at transmission pass-thru connector. If code is intermittent, see INTERMITTENTS in appropriate TESTS W/O CODES article in this section. See below.

Fig 1: Code 81 Schematic (Diesel) Transmission 2-3 Error
G94C66060
Fig 2: Code 81 Schematic (Gasoline) Transmission 2-3 Error
G94J38389
Fig 3: Code 81 Flow Chart Transmission 2-3 Error
G94C31940
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